Narrow-leaf milkweed attracts butterflies and bees and is smaller in stature than showy milkweed and blooms into August providing key nectar source for queen bumblebees and late-summer butterflies such as sulphers. It tolerates very dry conditions and is, typically, found in thin rocky soil areas in the Willamette Valley. It is a host plant for Monarch butterflies. 1-2 ft tall
